I, too, am having difficulties with Windows Mail, except every time I SEND
an email, I get what looks like 2 duplicate messages sent, but after sending
an email to myself (and seeing 2 emails registered as having been sent), I
receive only 1 email. So, even though it appears like 2 emails are being
sent, only 1 is actually going out. Still, this is very annoying.
BTW, I followed Gary VanderMolen's advice, but I do not show duplicate
accounts.
Hope this gets fixed!
Rebecca